goolden



(No Model.)

W. T. GOOLDEN & L. B. ATKINSON.-

MAGHINE FOR WORKING GOAL OR OTHER MINERALS.

Patented Dec. 27, 1892.

Flea.

FIG-'- N IIIIH! i mum [N Far/e 7%7 5 4 Wmm Ni'rn WALTER T. GOOLDEN ANDLLEWELYN B. ATKINSON, OF LONDON, ENGLAND.

MACHINE FOR WORKING COAL OR OTHER MINERALS.

SPECIFICATION forming part of Letters Patent No. 488,606, dated December27, 1892.

Application filed August 18, 1891. Serial No.403,0'74-.. (No model.)Patented in England January -23 188$,No. 1,014.

been patented to us in Great Britain, No.

1,014, dated January 23, 1888,) of which the following is aspecification.

This invention relates to improvements in machinery for cutting, orworking coal, or other mineral, and has for its object the pro vision ofmeans for undercutting the coal, or other mineral, at the bottom of theseam, the cutter, or drill, being kept as low as possible so as toinsure the least waste of the coal, or other mineral, to be worked.

To allow this invention being carried into effect the cutter, or drill,is suitably coupled to, or may form part of a shaft which rotates in along bearing hung from a center about which it may swing in ahorizontal, or nearly horizontal, plane. The same center serves also tocarry a vertical shaft having a bevel wheel and this engaging with asimilar bevel wheel, on the rotating cutter shaft, admits of motionbeing transmitted to the cutter shaft in any position in the horizontalplane. The shaft to which the cutter is attached is preferably carriedby its bearing, under a table, or frame, mounted on wheels so as to runon the usual trams, or rails, and supporting the prime mover, or sourceof power, such as an electric, steam, or air motor, or rope wheel, andmay be arranged so as to only just clear the rails on which the table,or frame, travels. The center, or trunnion, about which the cutter shaftrotates, in the horizontal plane, may

preferably be carried in front of the table so as to allow of cuttingbeing effected on either side of the table or at any intermediate pointin the are described by the rotation of the cutter bar in a horizontalplane. When the prime mover is an electric, steam, or air motor, it mayremain fixed, horizontally, upon the table, or frame, and transmit itsmotion to the vertical shaft, which in turn imparts motion to the cutterbar by a second pair of bevel wheels.

To allow of the cutter bar being fed forward to its work, when workingwith its axis at right angles to the rails on which the table,

or frame, travels, it may be formed as'a square bar, or provided with asufiiciently long feather key so as to allow of its being fed forward,by a screw, or other device, axially through the bevel wheel by whichmotion is imparted to it; or the table, or frame may be so constructedas to allow of that part of it which supports the trunnion, or center,and the long bearing in which the cutter shaft r0- tates, beingtraversed in a direction at right angles to the rails on which thetable, or frame, runs, or similarly the whole top of the table, orframe, may be made to so traverse.

Having now set forth the nature of our invention and shown in whatmanner the same is to be carried into effect we will now proceed to moreparticularly describe the same by reference to the accompanyingdrawings.

Figure 1 is an end elevation and Fig. 2 a side elevation of a coalcutting machine constructed in accordance with this our invention.

Suitably mounted on the frame, or table T is an electro motor M thespindle A of whose armature imparts motion by means of the bevel wheels5, Z), to the vertical spindle d. This vertical spindle d is provided atits lower end with a bevel wheel, as shown in Fig. 1, which in turnimparts, by means of a secon l bevel wheel, motion to the drill, or cut'ter, shaft D, carried in the long bearing E and attached by thecoupling 0, c, to the drill, or cutter, O. The long bearing E is cast orotherwise formed with the vertical sleeve piece F which passes throughand is supported by the bracket B suitably secured to the frame or tableT. The sleeve piece F is provided with the toothed wheel I and the wormJ on the spindle of the hand-wheel H engaging with this toothed wheel Iallows of its being rotated and so causing the long bearing E, and withit the drill, or cutter, O, to be rotated in a horizontal plane.

The electro motor together with the whole of the working parts, isinclosed in a dust tight casing 15, t, as shown.

Having now particularly described and ascertained the nature of our saidinvention, and in what manner the same is to be performed, we declarethat what we claim is:-

1. In combination the carriage, the vertical shaft at one edge thereof,the bearing therefor the cutter shaft extending transversely across thelower end of the vertical shaft, the gearing between said shafts, thelong bearing for the end of the cutter shaft extending laterally in linetherewith said bearing having a sleeve extending upwardly through andabove the bearing for the vertical shaft and about the said shaft, andmeans connected with the upper exposed end of the sleeve for turning thelong bearing and the cutter shaft to different lateral positions and themeans for operating the vertical, shaft,

substantially as described.

2. In combination the carriage frame, the vertical shaft at one edgethereof the cutter extending below the same the long bearing for thecutter shaft having a sleeve extending upwardly about the vertical shaftthrough

